The answer is a. and b.
Diamond is pure carbon(C). Salt is pure sodium chloride (NaCl). Ocean water can contain a number of different elements mostly Water (H2O) and sodium (Na)
Answer:
Artifical Selection OR Cross Pollination
Explanation:
If white roses and red roses are cross-bred by scientists, it would be artifical selection. If they were crossed in nature, it is called crossed pollination.
